Product Information Product Name : E50NManufacturer: Infiltrator Water Technologies, LLC (formerly Delta Treatment Systems, LLC)Original Certification Date: 10/01/2017Certification Date: 10/01/2024Certification End Date: 10/01/2031Capacity: 500Material: FiberglassType: Aerobic Treatment SystemClass: Class 1 Certifications Certification: Certifications: NSF/ANSI Standard 40 Standard year: 2023 Version Year of Original Standard: 2009SPE#: 154 Approved Approved Aerators: Manufacturer: FPZ Approved Diffusers: Manufacturer: Infiltrator Water Technologies, LLCModel: Infiltrator Water Technologies, LLC Approved Alarms: Manufacturer: Infiltrator Water Technologies, LLC